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/*
* Copyright (C) 2008 Maarten Maathuis.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __NOUVEAU_ENCODER_H__
#define __NOUVEAU_ENCODER_H__
#include <subdev/bios/dcb.h>
#include <drm/drm_encoder_slave.h>
#include <drm/drm_dp_mst_helper.h>
#include "dispnv04/disp.h"
struct nv50_head_atom;
struct nouveau_connector;
#define NV_DPMS_CLEARED 0x80
struct nvkm_i2c_port;
struct nouveau_encoder {
struct drm_encoder_slave base;
struct dcb_output *dcb;
int or;
int link;
struct i2c_adapter *i2c;
struct nvkm_i2c_aux *aux;
/* different to drm_encoder.crtc, this reflects what's
* actually programmed on the hw, not the proposed crtc */
struct drm_crtc *crtc;
u32 ctrl;
bool audio;
struct drm_display_mode mode;
int last_dpms;
struct nv04_output_reg restore;
union {
struct {
struct nv50_mstm *mstm;
int link_nr;
int link_bw;
/* Protects DP state that needs to be accessed outside
* connector reprobing contexts
*/
struct mutex hpd_irq_lock;
u8 dpcd[DP_RECEIVER_CAP_SIZE];
u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
struct drm_dp_desc desc;
u8 sink_count;
} dp;
};
struct {
bool dp_interlace : 1;
} caps;
void (*enc_save)(struct drm_encoder *encoder);
void (*enc_restore)(struct drm_encoder *encoder);
void (*update)(struct nouveau_encoder *, u8 head,
struct nv50_head_atom *, u8 proto, u8 depth);
};
struct nv50_mstm {
struct nouveau_encoder *outp;
struct drm_dp_mst_topology_mgr mgr;
/* Protected under nouveau_encoder->dp.hpd_irq_lock */
bool can_mst;
bool is_mst;
bool suspended;
bool modified;
bool disabled;
int links;
};
struct nouveau_encoder *
find_encoder(struct drm_connector *connector, int type);
static inline struct nouveau_encoder *nouveau_encoder(struct drm_encoder *enc)
{
struct drm_encoder_slave *slave = to_encoder_slave(enc);
return container_of(slave, struct nouveau_encoder, base);
}
static inline struct drm_encoder *to_drm_encoder(struct nouveau_encoder *enc)
{
return &enc->base.base;
}
static inline const struct drm_encoder_slave_funcs *
get_slave_funcs(struct drm_encoder *enc)
{
return to_encoder_slave(enc)->slave_funcs;
}
/* nouveau_dp.c */
enum nouveau_dp_status {
NOUVEAU_DP_NONE,
NOUVEAU_DP_SST,
NOUVEAU_DP_MST,
};
int nouveau_dp_detect(struct nouveau_connector *, struct nouveau_encoder *);
void nouveau_dp_irq(struct nouveau_drm *drm,
struct nouveau_connector *nv_connector);
enum drm_mode_status nv50_dp_mode_valid(struct drm_connector *,
struct nouveau_encoder *,
const struct drm_display_mode *,
unsigned *clock);
struct nouveau_connector *
nv50_outp_get_new_connector(struct nouveau_encoder *outp,
struct drm_atomic_state *state);
struct nouveau_connector *
nv50_outp_get_old_connector(struct nouveau_encoder *outp,
struct drm_atomic_state *state);
int nv50_mstm_detect(struct nouveau_encoder *encoder);
void nv50_mstm_remove(struct nv50_mstm *mstm);
bool nv50_mstm_service(struct nouveau_drm *drm,
struct nouveau_connector *nv_connector,
struct nv50_mstm *mstm);
#endif /* __NOUVEAU_ENCODER_H__ */
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